synonymous with the eye of sauron(satan)

The Eye of Providence or the all-seeing eye is a symbol showing an eye surrounded by rays of light or a glory, and usually enclosed by a triangle. It is sometimes interpreted as representing the eye of God keeping watch on humankind. In 1782 the Eye of Providence was adopted as part of the symbolism on the reverse side of the Great Seal of the United States. The Eye, however, was first suggested as an element of the Great Seal by the first of three design committees in 1776, and is thought to be the suggestion of the artistic consultant, Pierre Eugene du Simitiere.

On the seal, the Eye is surrounded by the words "Annuit Cœptis", meaning "He approves (or has approved) our undertakings," "Novus Ordo Seclorum," meaning "New Order of the Ages," and the lowest level of the pyramid showing the year 1776 in Roman numerals. The Eye is positioned above an unfinished pyramid with thirteen steps, representing the original thirteen states and the future growth of the country. The combined implication is that the Eye, or God, favors the prosperity of the United States.

The Eye of Providence also appears as part of the iconography of the Freemasons. Here it represents the all-seeing eye of God, and is then a reminder that a Mason's deeds are always observed by God (who is referred to in Masonry as the Grand Architect of the Universe). Typically the Masonic Eye of Providence has a semi-circular glory below the eye — often t...

The eyeball thingy at the back of the dollar bill.